Drying and curing zones

What flipping a zone to Dry or Cure starts, the dry strategies, mould risk, jar pucks in a curing chamber, and what the brain never controls.

Before the harvest, from flower day 35 the pre-harvest card on Today lists five checks, including Dry location ready (automatic) (you pick the dry space) and Dark-lock test (one tap, supervised), which passes only once a dry run is holding that space dark; see Today. Flip a zone to Dry (Settings › Zones) and a dry run starts: the brain records plants harvested in the last three days and their logged wet weight. The Climate desk shows a Dry run card: the day against the strategy's window, the weigh-in curve against the roughly 75 % a flower loses drying, a prompt to start stem checks in the last two or three days, the live RH, temperature and dew point, and an end checklist (weigh-in logged, stems snap, dry weight on each plant's Harvest entry).

The curve and the checklist read Weigh-in and Dry check entries on the zone's journal (the card's Log weigh-in / dry check button opens it). Log them on the zone's own journal: its composer offers the zone actions, including Weigh-in and Dry check. An entry logged on a plant does not count here. Flipping the zone out of Dry closes the run and writes a summary entry. The zone's Dry strategy (Settings › Zones) sets the band the desks judge; its preset reaches the hub only for the 4×8, while the hub's stage is Dry Mode and the brain owns stage targets (Settings › Climate › Stage presets). Nothing is written to the hub for any other zone.

Drying room too humid (binary_sensor.dsc_dry_mold_risk, critical) fires only when a drying zone's air is at or above the dry-room RH you set (Dry room RH alert, Settings › Climate › Dry and cure) — directly or through grow alert sensitivity.

A curing chamber is a zone you add in Settings › Zones (kind container, role Cure). Pair a Zigbee temperature/humidity puck for each jar and place it in Settings › Devices with placement Jar (curing), the chamber's zone and positions jar1, jar2… An ambient puck in the chamber gives the chamber temperature.

The Climate desk's Cure card reads every jar on its own — never an average — and advises per jar:

The advice reads Jar up (with the jar and a batch) and Burp entries on the curing chamber zone's journal (the card's Log jar up / burp button opens it). Log them on the zone's own journal, whose composer offers Jar up and Burp, or from the Jars card on the Climate desk: it lists each jar of a batch with its last RH and BURP DUE or NO BURP DUE, and has Add jar and Log burp forms. A jar nobody has read is unknown, not fine. A Harvest report card gives wet and dry weight, loss, days drying and grams per watt where they are known, and says what is still unknown. The chamber band (18–19 °C ± 0.5) and the jar lines (band 58–62 %, burp now 65 %, too dry below 55 %) are in Settings › Climate › Dry and cure. Alerts: Jar needs a burp (binary_sensor.dsc_cure_jar_rh_high, warning), Curing chamber off band (binary_sensor.dsc_cure_temp_out_of_band, warning) and Jar sensor silent (binary_sensor.dsc_cure_jar_silent, info) — a puck inside glass inside a metal chamber is a weak Zigbee link, so a router near the chamber helps.

The curing chamber holds its own temperature and the drying room runs on the hub's normal climate ladder. Flipping a zone to Dry or Cure records the role and switches the zone's bands on the dashboard (a flip to Dry also opens the Dry room ready procedure; Cure opens none) — it does not switch a lamp, fan or appliance.

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DSC-Brain user guide · Drying and curing zones · edited on this site